EP 0203794 A1 19861203 - Hydraulic RAM assembly.
Title (en)
Hydraulic RAM assembly.
Title (de)
Hydraulischer Presskolben.
Title (fr)
Vérin hydraulique.
Publication
Application
Priority
GB 8513553 A 19850529
Abstract (en)
A hydraulic ram assembly capable of providing a force varying over a wide range has a first ram with a fixed cylinder and a movable piston which is capable of supplying a force at the lower end of the range and a second ram with a fixed cylinder and a piston which is movable into engagement with the piston of the first ram to assist the first piston to thereby provide an increased load.
IPC 1-7
IPC 8 full level
B21B 31/32 (2006.01); F15B 11/036 (2006.01)
CPC (source: EP)
B21B 31/32 (2013.01); F15B 11/0365 (2013.01); F15B 2211/20538 (2013.01); F15B 2211/30525 (2013.01); F15B 2211/327 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/7056 (2013.01); F15B 2211/76 (2013.01)
Citation (search report)
- [X] GB 1600733 A 19811021 - MIDGLEY A C
- [X] FR 1602570 A 19701228
- [A] US 3053294 A 19620911 - HANS LINDBERG
- [A] GB 944223 A 19631211 - DEWANDRE CO LTD C
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 86303944 A 19860523; GB 8513553 A 19850529